I very, VERY seldom submit a review but felt I should for this Luxier shower panel.  This panel was installed in our OBX beach cottage, I was not there at the time.  I just arrived after a long winter and when I did try it, only hot water came out.  I had to contact Luxier to ask for help for a solution and they responded immediately.  I forwarded their suggestions to the person that installed the panel and he came over and was able to get everything working properly.  The 4 stars are Luxier customer service, I saved one star since I need to see how the panel holds up after a summer of guests.  It is very pretty and easy to adjust the settings.  Thank you Luxier for one less worry for me.